Sometimes things happen (like negative feedback or you make a boo boo) or don't happen (a promotion or well-deserved praise) at work and you can't help but be disheartened.
It's important to acknowledge the experience and give yourself permission to be disappointed.
And then it will be time to move on.
Gathering feedback, asking questions and honestly reviewing the situation will give you the learnings and ideas so you can control similar situations in the future.
Don't let a disappointment erode your energy or self-confidence.
Take positive action and take charge!